7
7.0
Jan 15, 2014
01/14
by
Maton, Anthea
texts
eye 7
favorite 0
comment 0
At head of title: Prentice Hall
Topics: Physics, Physics, Physics, Physics
321
321
Sep 1, 2011
09/11
by
Goodwin, Peter, 1951-
texts
eye 321
favorite 2
comment 0
Includes bibliographical references and index
Topics: Physics, Physics, Physics, Experiments
264
264
Jan 11, 2018
01/18
by
Holzner, Steven
texts
eye 264
favorite 2
comment 0
Includes index
Topics: Physics, Physics, Physics
82
82
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 82
favorite 0
comment 0
If the four-component Dirac equation is approximated by some two-component form, certain savings can be obtained. Typically, the small components are eliminated and two separate equations are introduced for atomic j = l �12 states. ...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2941
99
99
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 99
favorite 0
comment 0
The energy-expression: Subtracting the rest energy mc2 from E, the one-electron Dirac Hamiltonian...and the Dirac-Fock Hamiltonian...,The total wave function is the Slater determinant. ...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2936
563
563
Nov 14, 2013
11/13
by
Graeme Ackland
texts
eye 563
favorite 0
comment 0
Quantum Theory encompasses our best understanding of how nature works: what will be the result of any experiment. We arbitrarily split the universe into �system� (wave function), an environment or measurement (Hamiltonian, or operator) and a measureable quantity (eigenvalue). There is no unique associated mathematics, but since all measurements on systems yield real numbers, we need mathematics which gives real eigenvalues. So it is a premise of quantum theory that any measurable quantity...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/3433
334
334
Sep 28, 2010
09/10
by
Adams, Richard C. (Richard Crittenden); Goodwin, Peter, 1951-; Goodwin, Peter, 1951- Physics projects for young scientists
texts
eye 334
favorite 1
comment 0
Rev. ed. of: Physics projects for young scientists / Peter H. Goodwin, c1991
Topics: Physics, Physics, Physics, Experiments
491
491
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 491
favorite 0
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=OnQJAAAAIAAJ&oe=UTF-8
503
503
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 503
favorite 0
comment 0
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=-cI4AAAAMAAJ&oe=UTF-8
264
264
Jul 30, 2015
07/15
by
Urban, Paul, editor
texts
eye 264
favorite 0
comment 0
Topics: Physics, Physics, Physics, general
Topics: Physics, Physics, Mathematical physics
Cover title
Topics: Physics, Physics, Physics
Cover title
Topics: Physics, Physics, Physics
623
623
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 623
favorite 1
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=J6QIAAAAIAAJ&oe=UTF-8
373
373
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 373
favorite 2
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=anEIAAAAIAAJ&oe=UTF-8
667
667
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 667
favorite 0
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=PK0IAAAAIAAJ&oe=UTF-8
557
557
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 557
favorite 0
comment 0
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=a_g4AAAAMAAJ&oe=UTF-8
93
93
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 93
favorite 0
comment 0
Underpinning the Dirac-level theory we have quantum electrodynamics, QED. It is the theory on virtual photon processes. The two simplest terms are de-noted by the Feynman diagrams...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2940
Topics: Physics, Physics, Mathematical physics
78
78
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 78
favorite 0
comment 0
Introduction: Heavy elements are the nightmare of theoreticians.� Many electrons� Many orbitals� Relativistic dynamics. Solution: Find a pseudopotential with a ground state which is the lowest needed valence orbital.� Local PP (the same for all values of l)� Semi-local PP (di_erent radial part for di_erent values of l)
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2939
85
85
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 85
favorite 0
comment 0
Semiempirical methods As a general philosophy, the purpose of semiempirical calculations is to produce good insight, not to produce bad numbers. ...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2938
117
117
Nov 14, 2013
11/13
by
Ben Simons
texts
eye 117
favorite 0
comment 0
In this section we introduce the method of second quantisation, the basic framework for the formulation of many-body quantum systems. The �rst part of the section focuses on methodology and notation, while the remainder is devoted to physically-motivated applications. Examples of the operator formalism are taken from various �elds of quantum condensed matter.
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/3323
608
608
Jan 25, 2010
01/10
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 608
favorite 0
comment 0
Book digitized by Google from the library of Ghent University and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=huEPAAAAQAAJ&oe=UTF-8
661
661
Aug 21, 2015
08/15
by
Burke, James, 1936-; British Broadcasting Corporation. Television Service; RKO Productions; Churchill Films
movies
eye 661
favorite 10
comment 0
Title from data sheet
Topics: Physics, Physics, Physics
371
371
Feb 21, 2018
02/18
by
Marion, Jerry B
texts
eye 371
favorite 3
comment 0
Topics: Physics, Physics, Natuurkunde, Physics
445
445
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 445
favorite 0
comment 0
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=CvE4AAAAMAAJ&oe=UTF-8
8
8.0
Sep 13, 2018
09/18
by
Hobson, Art, 1934-
texts
eye 8
favorite 1
comment 0
xix, 530 pages : 25 cm
Topics: Physics -- Textbooks, Physics, Physics
172
172
Nov 14, 2013
11/13
by
R. Victor Jones
texts
eye 172
favorite 0
comment 0
To prepare the ground for the quantization of the electromagnetic field, let us revisit the classical treatment of a simple harmonic oscillator with one degree of freedom.
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2930
145
145
Nov 14, 2013
11/13
by
Vladan Vuletic
texts
eye 145
favorite 0
comment 0
Angular momentum The eigenequation associated with angular momentum reads
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/3092
4
4.0
Jun 30, 2018
06/18
by
Andrea Bianconi
texts
eye 4
favorite 0
comment 0
Background: The epidemiology of the slightly radioactive contrast agent named Thorotrast presents a very long latency period between the injection and the development of the related pathologies. It is an example of the more general problem posed by a radioactive internal contaminant whose effects are not noteworthy in the short term but become dramatic in the long period. A point that is still to be explored is fluctuations (in space and time) in the localized absorption of radiation by the...
Topics: Medical Physics, Physics, Biological Physics, Computational Physics
Source: http://arxiv.org/abs/1403.5409
4
4.0
Jun 30, 2018
06/18
by
Saeed Izadi; Ramu Anandakrishnan; Alexey V. Onufriev
texts
eye 4
favorite 0
comment 0
Simplified, classical models of water are an integral part of atomistic molecular simulations, especially in biology and chemistry where hydration effects are critical. Yet, despite several decades of effort, these models are still far from perfect. Presented here is an alternative approach to constructing point charge water models - currently, the most commonly used type. In contrast to the conventional approach, we do not impose any geometry constraints on the model other than symmetry....
Topics: Physics, Chemical Physics, Biological Physics, Computational Physics
Source: http://arxiv.org/abs/1408.1679
7
7.0
Jun 29, 2018
06/18
by
Nicola Petrone; Matteo Cognolato; James A. McNeil; Mont Hubbard
texts
eye 7
favorite 0
comment 0
Previous work has presented both a theoretical foundation for designing terrain park jumps that control landing impact and computer software to accomplish this task. US ski resorts have been reluctant to adopt this more engineered approach to jump design, in part due to questions of feasibility. The present study demonstrates this feasibility. It describes the design, construction, measurement and experimental testing of such a jump. It improves on previous efforts with more complete...
Topics: Popular Physics, Medical Physics, Physics, Biological Physics
Source: http://arxiv.org/abs/1611.04448
2
2.0
Jun 29, 2018
06/18
by
Ketan Sharma; Bretislav Friedrich
texts
eye 2
favorite 0
comment 0
We examine the rotational states of a pair of polar $^2\Sigma$ molecules subject to a uniform magnetic field. The electric dipole-dipole interaction between the molecules creates entangled pair-eigenstates of two types. In one type, the Zeeman interaction between the inherently paramagnetic molecules and the magnetic field destroys the entanglement of the pair-eigenstates, whereas in the other type it does not. The pair-eigenstates exhibit numerous intersections, which become avoided for...
Topics: Chemical Physics, Quantum Physics, Physics, Computational Physics
Source: http://arxiv.org/abs/1601.04860
101
101
Jun 25, 2018
06/18
by
Mehdi Tabrizi
texts
eye 101
favorite 0
comment 0
The multiple scattering effect on the line width of the backward Parametric X-ray Radiation (PXR) in the extremely Bragg geometry, produced by low energy relativistic electrons traversing a single crystal, is discussed. It is shown that there exist conditions, when the influence of photo absorption on the line width can be neglected, and the only multiple scattering process of relativistic electrons in crystal leads to the PXR lines' broadening. Based on the obtained theoretical and numerical...
Topics: Accelerator Physics, Physics, Atomic Physics, Physics
Source: http://arxiv.org/abs/1501.00836
3
3.0
Jun 29, 2018
06/18
by
D. Drakova; G. Doyen
texts
eye 3
favorite 0
comment 0
Long lasting coherence in photosynthetic pigment-protein complexes has been observed even at physiological temperatures. Experiments have demonstrated quantum coherent behaviour in the long-time operation of the D-Wave quantum computer as well. Quantum coherence is the common feature between the two phenomena. An explanations for eight orders of magnitude discrepancy between the single flux qubit coherence time and the long-time quantum behaviour of an array of thousand flux qubits in the...
Topics: Chemical Physics, Quantum Physics, Physics, Biological Physics
Source: http://arxiv.org/abs/1605.06149
3
3.0
Jun 30, 2018
06/18
by
Federica Agostini; Ali Abedi; E. K. U. Gross
texts
eye 3
favorite 0
comment 0
We present a detailed derivation and numerical tests of a new mixed quantum-classical scheme to deal with non-adiabatic processes. The method is presented as the zero-th order approximation to the exact coupled dynamics of electrons and nuclei offered by the factorization of the electron-nuclear wave function [A. Abedi, N. T. Maitra and E. K. U. Gross, Phys. Rev. Lett., 105 (2010)]. Numerical results are presented for a model system for non-adiabatic charge transfer in order to test the...
Topics: Physics, Chemical Physics, Quantum Physics, Computational Physics
Source: http://arxiv.org/abs/1406.5126
86
86
Jun 27, 2018
06/18
by
Daniel Baye; Jérémy Dohet-Eraly
texts
eye 86
favorite 0
comment 0
The Lagrange-mesh method has the simplicity of a calculation on a mesh and can have the accuracy of a variational method. It is applied to the study of a confined helium atom. Two types of confinement are considered. Soft confinements by potentials are studied in perimetric coordinates. Hard confinement in impenetrable spherical cavities is studied in a system of rescaled perimetric coordinates varying in [0,1] intervals. Energies and mean values of the distances between electrons and between...
Topics: Quantum Physics, Computational Physics, Physics, Atomic Physics
Source: http://arxiv.org/abs/1506.00589
3
3.0
Jun 30, 2018
06/18
by
Rosa Glöckner; Alexander Prehn; Gerhard Rempe; Martin Zeppenfeld
texts
eye 3
favorite 0
comment 0
Detecting the internal state of polar molecules is a substantial challenge when standard techniques such as resonance-enhanced multi photon ionization (REMPI) or laser-induced fluorescense (LIF) do not work. As this is the case for most polyatomic molecule species, we here investigate an alternative based on state selective removal of molecules from an electrically trapped ensemble. Specifically, we deplete molecules by driving rotational and/or vibrational transitions to untrapped states....
Topics: Physics, Chemical Physics, Atomic Physics, Quantum Physics
Source: http://arxiv.org/abs/1411.7860
6
6.0
Jun 29, 2018
06/18
by
Qiang Chen; Hong Qin; Jian Liu
texts
eye 6
favorite 0
comment 0
Exact eigen modes with orbital angular momentum (OAM) in the complex media of unmagnetized homogeneous plasma are studied. Three exact eigen modes with OAM are discovered, i.e., photons, phonons, and plasmons. It is found that an OAM photon can be excited by two familiar Bessel modes without OAM. For the phonons and plasmons, their OAM are carried by the electrons and ions. The OAM modes in plasmas and their characteristics can be explored for various potential applications in plasma physics...
Topics: Accelerator Physics, Quantum Physics, Physics, Plasma Physics
Source: http://arxiv.org/abs/1608.02186
83
83
Jun 28, 2018
06/18
by
V. Mosert; D. Bauer
texts
eye 83
favorite 0
comment 0
Joint electron-ion energy spectra for the dissociative ionization of a model H$_2^+$ in few-cycle, infrared laser pulses are calculated via the numerical ab initio solution of the time-dependent Schr\"odinger equation. A strong, pulse-dependent modulation of the ionization probability for certain values of the protons' kinetic energy (but almost independent of the electron's energy) is observed. With the help of models with frozen ions, this feature---which mistakenly might be attributed...
Topics: Quantum Physics, Chemical Physics, Atomic Physics, Physics
Source: http://arxiv.org/abs/1506.05401
8
8.0
Jun 30, 2018
06/18
by
Christian B. Mendl
texts
eye 8
favorite 0
comment 0
We devise an efficient algorithm for the symbolic calculation of irreducible angular momentum and spin (LS) eigenspaces within the $n$-fold antisymmetrized tensor product $\wedge^n V_u$, where $n$ is the number of electrons and $u = \mathrm{s}, \mathrm{p}, \mathrm{d},\dots$ denotes the atomic subshell. This is an essential step for dimension reduction in configuration-interaction (CI) methods applied to atomic many-electron quantum systems. The algorithm relies on the observation that each...
Topics: Physics, Quantum Physics, Atomic Physics, Computational Physics
Source: http://arxiv.org/abs/1409.6860
4
4.0
Jun 29, 2018
06/18
by
Lasse Kragh Sørensen; Sebastian Bauch; Lars Bojer Madsen
texts
eye 4
favorite 0
comment 0
We present the formulation and implementation of the Integral-Screened Configuration-Interaction method (ISCI). The ISCI is a minimal-operational count integral-driven direct Configuration-Interaction (CI) method with a simple and rigorous integral screening (IS). With a novel derivation of the CI equations we show that the time consuming $\sigma$-vector calculation is separable up to an overall sign and that this separability can lead to a rigorous IS. The rigorous IS leads to linear scaling...
Topics: Atomic Physics, Chemical Physics, Physics, Computational Physics
Source: http://arxiv.org/abs/1609.07757
3
3.0
Jun 29, 2018
06/18
by
Loic Joubert-Doriol; Janakan Sivasubramanium; Ilya G. Ryabinkin; Artur F. Izmaylov
texts
eye 3
favorite 0
comment 0
On-the-fly quantum nonadiabatic dynamics for large systems greatly benefits from the adiabatic representation readily available from the electronic structure programs. However, frequently occurring in this representation conical intersections introduce non-trivial geometric or Berry phases which require a special treatment for adequate modelling of the nuclear dynamics. We analyze two approaches for nonadiabatic dynamics using the time-dependent variational principle and the adiabatic...
Topics: Chemical Physics, Quantum Physics, Physics, Computational Physics
Source: http://arxiv.org/abs/1611.04442
3
3.0
Jun 30, 2018
06/18
by
Jan Jeske; David Ing; Martin B. Plenio; Susana F. Huelga; Jared H. Cole
texts
eye 3
favorite 0
comment 0
We challenge the misconception that Bloch-Redfield equations are a less powerful tool than phenomenological Lindblad equations for modeling exciton transport in photosynthetic complexes. This view predominantly originates from an indiscriminate use of the secular approximation. We provide a detailed description of how to model both coherent oscillations and several types of noise, giving explicit examples. All issues with non-positivity are overcome by a consistent straightforward physical...
Topics: Biological Physics, Physics, Chemical Physics, Quantum Physics
Source: http://arxiv.org/abs/1408.2726
116
116
Jun 25, 2018
06/18
by
Claudio O. Dib
texts
eye 116
favorite 0
comment 0
A major consequence of special relativity, expressed in the relation $E_0 = m c^2$, is that the total energy content of an object at rest, including its thermal motion and binding energy among its constituents, is a measure of its inertia, i.e. its mass. This relation was first stated by Einstein. He showed that, in order to be consistent with the principles of special relativity, there must be a loss of inertia in a block that emits two pulses of electromagnetic radiation. A pedagogical...
Topics: Classical Physics, Physics, Popular Physics, Physics
Source: http://arxiv.org/abs/1501.00189
116
116
Jun 26, 2018
06/18
by
John W. Blanchard; Tobias F. Sjolander; Jonathan P. King; Micah P. Ledbetter; Emma H. Levine; Vikram S. Bajaj; Dmitry Budker; Alexander Pines
texts
eye 116
favorite 0
comment 0
Zero- to ultra-low-field nuclear magnetic resonance (ZULF NMR) provides a new regime for the measurement of nuclear spin-spin interactions free from effects of large magnetic fields, such as truncation of terms that do not commute with the Zeeman Hamiltonian. One such interaction, the magnetic dipole-dipole coupling, is a valuable source of spatial information in NMR, though many terms are unobservable in high-field NMR, and the coupling averages to zero under isotropic molecular tumbling....
Topics: Chemical Physics, Physics, Quantum Physics, Atomic Physics
Source: http://arxiv.org/abs/1501.05768
6
6.0
Jun 30, 2018
06/18
by
Paul E. Grabowski; Kieron Burke
texts
eye 6
favorite 0
comment 0
Two electrons at the threshold of ionization represent a severe test case for electronic structure theory. A pseudospectral method yields a very accurate density of the two-electron ion with nuclear charge close to the critical value. Highly accurate energy components and potentials of Kohn-Sham density functional theory are given, as well as a useful parametrization of the critical density. The challenges for density functional approximations and the strength of correlation are also discussed.
Topics: Physics, Chemical Physics, Atomic Physics, Quantum Physics
Source: http://arxiv.org/abs/1408.2014
95
95
Jun 27, 2018
06/18
by
S. B. Bayram; P. T. Arndt; M. V. Freamat
texts
eye 95
favorite 0
comment 0
We describe an inexpensive instructional experiment that demonstrates the rotational energy levels of diatomic nitrogen, using the emission band spectrum of molecular nitrogen ionized by various processes in a commercial AC capillary discharge tube. The simple setup and analytical procedure is introduced as part of a sequence of educational experiments employed by a course of advanced atomic and molecular spectroscopy, where the study of rotational spectra is combined with the analysis of...
Topics: Physics Education, Chemical Physics, Physics, Atomic Physics
Source: http://arxiv.org/abs/1504.05510
79
79
Jun 28, 2018
06/18
by
H. Ahmadi; M. Vafaee; A. Maghari
texts
eye 79
favorite 0
comment 0
High-order harmonic generation (HHG) is investigated for H$_2^+$ and its isotopomers under seven- and ten-cycle trapezoidal laser pulses at 800 nm wavelength and $I$=4$\times 10^{14}$ W$/$cm$^2$ intensity. We solved numerically full-dimensional electronic time-dependent Schr\"{o}dinger equation with and without the Born-Oppenheimer approximation. We show that the HHG at the falling edge of a trapezoidal laser pulse can result in redshift and complexity on the total HHG spectrum which can...
Topics: Chemical Physics, Computational Physics, Atomic Physics, Physics
Source: http://arxiv.org/abs/1509.03727
116
116
Jun 25, 2018
06/18
by
M. Peiris; B. Petrak; K. Konthasinghe; Y. Yu; Z. C. Niu; A. Muller
texts
eye 116
favorite 0
comment 0
Two-color second-order correlations of the light scattered near-resonantly by a quantum dot were measured by means of spectrally-filtered coincidence detection. The effects of filter frequency and bandwidth were studied under monochromatic laser excitation, and a complete two-photon spectrum was reconstructed. In contrast to the ordinary one-photon spectrum, the two-photon spectrum is asymmetric with laser detuning and exhibits a rich structure associated with both real and virtual two-photon...
Topics: Quantum Physics, Atomic Physics, Physics, Optics, Physics
Source: http://arxiv.org/abs/1501.00898
